chromeos: Choose monitor native mode as best match mode

ui/display/chromeos/display_configurator.cc

Index: ui/display/chromeos/display_configurator.cc
diff --git a/ui/display/chromeos/display_configurator.cc b/ui/display/chromeos/display_configurator.cc
index 3194636b6279e587c57dae75ef662c0f8e2c7e14..866efdb2e3c6c29da10afcbcf1eb53b1677f1f39 100644
--- a/ui/display/chromeos/display_configurator.cc
+++ b/ui/display/chromeos/display_configurator.cc
@@ -129,6 +129,11 @@ const DisplayMode* DisplayConfigurator::FindDisplayModeMatchingSize(
     if (mode->size() != size)
       continue;
 
+    if (mode == display.native_mode()) {
+      best_mode = mode;
+      break;
+    }
+
     if (!best_mode) {
       best_mode = mode;
       continue;